Andreas tengvall



No. 6|5,||5. Patented Nov. 29, |898. A *TENGVALL LETTER FlLE.

l (Application led Feb. 5, 1897.) (N o M o d e I J 1111111111111 11111111111111111111'lll/lllllllllll"11,11,1m :I

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UNITED STATES PATENT l OFFICEe ANDREAS TENGVALL, OF HELSINGBORG, SVEDEN.

LETTER-FILE.

SPECIFICATION forming part of Letters Patent No. 615,115, dated November 29, 1898. Application lecl February 5,1897. Serial No. 622,164. (No model.)

To all whom it may concern:

Be it known that I, ANDREAS TENevALL, merchant,asubject ofthe King of Sweden and Norway, residing at I-Ielsingborg, Sweden, have invented certain new and useful Improvements in Letter-Files; and I do hereby declare the following to be a full, clear, and exact description of theinvention,such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to an arrangement for holding together bills, letters, or other documents in illes in such a manner that one or more of the filed papers can be readily1 removed from their board lids or covers.

Referring to the drawings, in which like letters refer to like parts in the several views, Figure l is a plan view of my improved device, showing the covers or lids open. Fig. 2 is a longitudinal section showing the covers closed; and Fig. 3 is a view of a modification, showing the device in elevation, the retaining device being secured to the lower lid.

a @designate two lids orcovers flexibly connected to a back 7L in such manner as to lie iiat when open. To the back h is secured a hinge-piece consisting of a sleeve g, having a securing-dange g. '.lhe flange is riveted or otherwise secured near one edge of the back h in such manner that the sleeve g will lie against one lid or cover at the point of connection with the back.

The documents to be iiled are secured between the covers by means of pins c, which are connected by a cross-bar c2, journaled in the sleeve g. This cross-bar c2 is bent at right angles to the plane of the pins,which offsets them some distance from the back h, holding the pins perpendicular to the covers and parallel with the back when the iile is closed. The sleeve g may also be secured to one of the covers, if desired, the positions of the pins remaining the same relative to the back when the file is closed. Over the pins c are placed perforated binder-plates d, the perforations registering with the pins, and between these plates the letters or documents to be iiled are held, perforations having been previously made in the letters to register with the pins. A second set of pins b, similar to the irst, but not having their cross-bar bent at an angle to the plane of the pins, pass through a second set of perforations in the plates and papers. The pins b are shown as being wider apart than those of the other set; but they may be made much' closer together or the saine width, as shown by the dot-ted lines. In each case one of the pinsin each set will be between those of the other, or one set may be slightly in advance of the other, so that the distance between the pins of each set and the corresponding perforations in the plates will be variable to any extent consistent with the size of the documents to be iiled.

To remove a letter or other document from the center of the iile, the hand is passed under that one next above the one to be removed and the upper plate and pins b and letters above the one to be removed are lifted out. The desired letter can then be removed, all those below it being held in position by the pins c, and the pins b,with the letters thereon, can then be returned to their position, all the perforations in the lower letters having been held in register by the lower pins c and those in the upper letters having been similarly held by the pins b.

Having thus described my invention, what I claim as new, and desire to secure by Letters l. A letter-iile comprising a back and sides or covers hinged thereto, two iiling-pins for the reception of the letters, pivotally connected with the back to hold said letters parallel with the sides or covers when the le is open or closed, and two auxiliary retainingpins adapted to pass through the tile contents from an opposite direction and at points other than those through which the filing-pins pass, for the purpose set forth.

2. A letter-file comprising a back and sides or covers hinged thereto,two filing-pins for the reception of the letters, pivotally connected with the back to hold said letters parallel with the sides or covers when the file is open or closed, two auxiliary retaining joined pins In testimony 'whereof I aiiix my signature adapted to pass through the file contents from in presence of two Witnesses.

:in opposite direction and at points other than T those through which the iling-pins pass, and Ab DREAS TENGVALL' binding-plates ttinglooselyon the filing and Witnesses:

retaining pins and forming an edge binding THURE GREHRSSON,

forthe file Contents, substantially as set forth. C. LPQVIST. 

